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Finding the Fourth Proportional to 111,993.80, 167,882.70 and 64,560.20

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Solution

The fourth proportional to 111,993.80, 167,882.70 and 64,560.20 is: 96,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,993.80 : 167,882.70 = 64,560.20 : x
  2. Step 2: Convert to fraction form
    111,993.80/167,882.70 = 64,560.20/x
  3. Step 3: Cross multiply
    111,993.80x = 167,882.70 × 64,560.20
  4. Step 4: Simplify right side
    111,993.80x = 10,838,540,688.54
  5. Step 5: Solve for x
    x = 10,838,540,688.54/111,993.80
  6. Step 6: Final answer
    x = 96,778.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.